*{
    padding:0;
    margin: 0;
}
body{
    width:1500px;
    margin: 0 auto;
    background-color: whitesmoke;
}

    /* 重置样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    /* Header样式 */
    .header {
        z-index: 1000;
        background-color:white;
        left: 50%;
        transform: translateX(-50%);
        position: fixed;
        width: 1500px;
        height: 90px;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    /* 导航样式 */
    .nav {
        display: flex;
    }

    .nav ul {
        list-style-type: none;
        margin: 0;
        padding: 0;
    }

    .nav ul li {
        float: left;
        position: relative;
    }

    .nav ul li a {
        text-decoration: none;
        font-family: 微软雅黑;
        display: block;
        height: 90px;
        padding-left: 15px;
        padding-right: 15px;
        line-height: 90px;
        font-size: 24px;
        color: #575757;
    }

    .nav ul li a:hover {
        color: red;
    }

    /* 子菜单的基本样式 */
    .zi {
        background-color: white;
        position: absolute;
        top: 90px;
        width: 126px;
        left: 0;
        z-index: 1000;
        opacity: 0;
        transition: opacity 0.3s ease, transform 0.3s ease;
        pointer-events: none;
        border-top: 5px solid red;
        visibility: hidden;
    }

    .zi li {
        margin-bottom: 2px;
        /* 减少<li>元素的下边距 */
    }

    .zi li:not(:last-child) {
        border-bottom: 2px dashed #ccc;
        /* 增加虚线宽度 */
        padding-bottom: 2px;
        /* 减少<a>标签的内边距 */
    }

    .zi li a {
        padding: 5px 15px;
        line-height: 1.2;
    }

    /* 容器样式，用于水平排列和居中图片 */
    .img-container {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 35px;
        margin: 20px;
    }

    /* 图片样式 */
    .img {
        width: 250px;
        height: 125px;
        margin: 0;
        border: none;
    }

    #zicaidan1 {
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .zicaidanli {
        margin-left: 80px;
        margin-right: 80px;
    }

    .case-center {
        border-top: 5px solid red;
        position: absolute;
        top: 90px;
        height: 250px;
        width: 1500px;
        left: -253%;
        transform: translateX(-500%);
        z-index: 1000;
        background-color: #e5e5e5;
        opacity: 0;
        transition: opacity 0.3s ease, transform 0.3s ease;
         pointer-events: none;
        visibility: hidden;
    }

    /* 定义下滑动画 */
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* 定义上滑动画 */
    @keyframes slideUp {
        from {
            opacity: 1;
            transform: translateY(0);
        }

        to {
            opacity: 0;
            transform: translateY(-20px);
        }
    }

    /* 不能删 */
    #bukeshan {
        margin: 0 auto;
        width: 1500px;
        height: 90px;

    }


















    #background-image{
        background-image: url(../images/picture/tupian5.jpg);
        height: 500px;
        cursor: pointer;
    }
    
    
    
    
    
    #fixed{
        background-color:white;
        border:10px solid RGB(0,162,232);
        border-top: 20px solid RGB(0,162,232);
        width:120px;
        height:280px;
        position: fixed;
        top:250px;
        right:0px;
        z-index: 2;
        animation-name: none; /* 初始化时不应用动画 */
       
       
    
    }
    @keyframes huadong {
        0%{
            transform: translateX(0%);
        }
        100%{
            transform: translateX(100%);
        }
        
    }
    
    #out{
        background-color: RGB(0,162,232);
        width:20px ;
        height: 20px;
       
        background-image: url(../images/image/keifu.png);
        
        background-position:-38px 4px;
      
    
        position: fixed;
        top:250px;
        right:0px;
    
    }
    
    
    
    
    
    #fixed>a{
        text-decoration: none;
        color:black;
        font-size: 14px;
        
        
    }
    #fixed>img:nth-of-type(1){
        width: 103px;
        height:40px;
    }
    #fixed>span{
        background-color: RGB(0,162,232);
        width:20px ;
        height: 20px;
        float: right;
        background-image: url(../images/image/keifu.png);
        
        background-position:-38px 4px;
        margin-right: -10px;
        margin-top: -20px;
        z-index: 3;
    
       
    }
    
    
    #side{
        position: fixed;
        top :650px;
        right:40px;
        
        width: 60px;
        height: 60px;
        border-radius: 50%;
        
    
    }
    #side>button{
        border: 0px;
        border-radius: 50%;
        background-color: rgb(203,208,230);
        width: 60px;
        height: 60px;
        cursor: pointer;
    }
    
    



#content{
    margin-left:100px;
    margin-right:100px;
    height:140px;
}
#content > img{
    display: inline;
}

#content>#content1>span{
    color:grey;
    cursor: pointer;

}
#content>#content2{
    display: flex;
    justify-content: center;
}
#content>#content2>button{
    font-size: 15px;
    padding-top:15px;
    padding-right:15px;
    padding-left:15px;
    padding-bottom: 15px;
    margin-left:60px;
    margin-right: 60px;
    border: 0 solid whitesmoke;
    cursor: pointer;
}



#content3{
   margin-left: 100px;
  
   
    overflow: hidden;
}
.content4{

    background-color:white;
    border:10px solid white;
    width:360px;
    height: 420px;;
    float:left;
    margin-left:35px ;
    margin-right:35px;
    margin-top: 10px;
    margin-bottom: 10px;
    cursor: pointer;
    
    
}

.fangda{
    
    width: 360px;
    height: 230px;
    overflow: hidden;

}
.fangda>img{
    width: 360px;
    height: 230px;
}



.fangda>img {
    transition: transform 0.2s; /* 添加过渡效果 */
}
.fangda>img:hover {
    transform: scale(1.2); /* 放大1.2倍 */
}


.content4 span:nth-of-type(2) {
    width:60px;
    margin-right: 0px;
    float: right;
    font-size: 25px;
    
}

















#tail1{
    margin-top:100px;
    margin-left: 760px;
    margin-right:600px;
    width:550px;
    height: 150px;
}
#tail1>button{
    background-color: white;
    border-color: grey;
    margin:0 auto;
    width: 50px;
    height: 40px;

}
#tail1>button:nth-child(2){
    width:40px;
    background-color: rgb(2, 2, 2);
    color:whitesmoke
}







.footer {
    width: 1500px;
    height: 450px;
    margin: 0 auto;
    background-color: #272844;
}

.shang {
    height: 100px;
    width: 1200px;
    margin: 0 auto;
}

.shang p {
    margin-left: 65px;
    padding-top: 20px;
}

.last {
    border-bottom: 2px solid #32354b;
}

.zhong {
    overflow: hidden;
    width: 1200px;
    margin: 50px auto;
}

.zhong .left {
    float: left;
    margin-left: 65px;
}

.line {
    float: left;
    height: 150px;
    margin-left: 60px;
    border-right: 2px solid #38384e;
}

.center {
    float: left;
    margin-left: 60px;
}

.one {
    float: left;
}

.two,
.three,
.four {
    float: left;
    margin-left: 60px;
}

.one ul li .first,
.two ul li .first,
.three ul li .first,
.four ul li .first,
.four ul li .child {
    font: 600 16px 'Microsoft yahei';
    color: #a1abb8;
}

.one ul li .child,
.two ul li .child,
.three ul li .child {
    font: 500 13px 'Microsoft yahei';
    color: #a1abb8;
}

.right {
    float: left;
    margin-left: 30px;
}

.right p {
    font: 500 15px 'Microsoft yahei';
    color: #a1abb8;
}

.right .second {
    font: 500 25px 'Microsoft yahei';
    color: #c3cdc7;
}

.zixun {
    width: 100px;
    height: 30px;
    background-color: #ff3533;
    border: 2px solid #ff3533;
    border-radius: 30px;
    line-height: 30px;
    text-align: center;
    margin: 5px 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.zixun a {
    color: white;
    text-decoration: none;
}

.dizhi,
.youzhongng {
    display: flex;
    align-items: center;
    margin-top: 5px;
}

.right img {
    margin-right: 10px;
}

.right em {
    font: 500 15px 'Microsoft yahei';
    color: #c3cdc7;
}

.xia {
    width: 550px;
    height: 20px;
    margin: 80px auto;
    color: #c3cdc7;
}

li{
    list-style:none;
    
}
li>a{
    text-decoration: none;
}

